%%
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%% Copyright Ericsson AB 2010-2016. All Rights Reserved.
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%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
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%%
%%% @doc Common Test Example Suite Callback module.
%%%
%%% <p>This module gives an example of a common test CTH (Common Test Hook).
%%% There are many ways to add a CTH to a test run, you can do it either in
%%% the command line using -ct_hook, in a test spec using
%%% {ct_hook,M} or in the suite it self by returning ct_hook
%%% from either suite/0, init_per_suite/1, init_per_group/2 and
%%% init_per_testcase/2. The scope of the CTH is determined by where is it
%%% started. If it is started in the command line or test spec then it will
%%% be stopped at the end of all tests. If it is started in init_per_suite,
%%% it will be stopped after end_per_suite and so on. See terminate
%%% documentation for a table describing the scoping machanics.
%%%
%%% All of callbacks except init/1 in a CTH are optional.</p>
-module(verify_config).
%% CT Hooks
-export([id/1]).
-export([init/2]).
-export([pre_init_per_suite/3]).
-export([post_init_per_suite/4]).
-export([pre_end_per_suite/3]).
-export([post_end_per_suite/4]).
-export([pre_init_per_group/3]).
-export([post_init_per_group/4]).
-export([pre_end_per_group/3]).
-export([post_end_per_group/4]).
-export([pre_init_per_testcase/3]).
-export([post_end_per_testcase/4]).
-export([on_tc_fail/3]).
-export([on_tc_skip/3]).
-export([terminate/1]).
-include_lib("common_test/src/ct_util.hrl").
-include_lib("common_test/include/ct_event.hrl").
-type config() :: proplists:proplist().
-type reason() :: term().
-type skip_or_fail() :: {skip, reason()} |
{auto_skip, reason()} |
{fail, reason()} |
{'EXIT',reason()}.
-record(state, { id = ?MODULE :: term()}).
%% @doc Always called before any other callback function. Use this to initiate
%% any common state. It should return an state for this CTH.
-spec init(Id :: term(), Opts :: proplists:proplist()) ->
{ok, State :: #state{}}.
init(Id, Opts) ->
{ok,Opts}.
%% @doc The ID is used to uniquly identify an CTH instance, if two CTH's
%% return the same ID the seconds CTH is ignored. This function should NOT
%% have any side effects as it might be called multiple times by common test.
-spec id(Opts :: proplists:proplist()) ->
Id :: term().
id(Opts) ->
os:timestamp().
%% @doc Called before init_per_suite is called. Note that this callback is
%% only called if the CTH is added before init_per_suite is run (eg. in a test
%% specification, suite/0 function etc).
%% You can change the config in the this function.
-spec pre_init_per_suite(Suite :: atom(),
Config :: config(),
State :: #state{}) ->
{config() | skip_or_fail(), NewState :: #state{}}.
pre_init_per_suite(Suite,Config,State) ->
{Config, State}.
%% @doc Called after init_per_suite.
%% you can change the return value in this function.
-spec post_init_per_suite(Suite :: atom(),
Config :: config(),
Return :: config() | skip_or_fail(),
State :: #state{}) ->
{config() | skip_or_fail(), NewState :: #state{}}.
post_init_per_suite(Suite,Config,Return,State) ->
{Return, State}.
%% @doc Called before end_per_suite. The config/state can be changed here,
%% though it will only affect the *end_per_suite function.
-spec pre_end_per_suite(Suite :: atom(),
Config :: config() | skip_or_fail(),
State :: #state{}) ->
{ok | skip_or_fail(), NewState :: #state{}}.
pre_end_per_suite(Suite,Config,State) ->
{Config, State}.
%% @doc Called after end_per_suite. Note that the config cannot be
%% changed here, only the status of the suite.
-spec post_end_per_suite(Suite :: atom(),
Config :: config(),
Return :: term(),
State :: #state{}) ->
{ok | skip_or_fail(), NewState :: #state{}}.
post_end_per_suite(Suite,Config,Return,State) ->
{Return, State}.
%% @doc Called before each init_per_group.
%% You can change the config in this function.
-spec pre_init_per_group(Group :: atom(),
Config :: config(),
State :: #state{}) ->
{config() | skip_or_fail(), NewState :: #state{}}.
pre_init_per_group(Group,Config,State) ->
{Config, State}.
%% @doc Called after each init_per_group.
%% You can change the return value in this function.
-spec post_init_per_group(Group :: atom(),
Config :: config(),
Return :: config() | skip_or_fail(),
State :: #state{}) ->
{config() | skip_or_fail(), NewState :: #state{}}.
post_init_per_group(Group,Config,Return,State) ->
{Return, State}.
%% @doc Called after each end_per_group. The config/state can be changed here,
%% though it will only affect the *end_per_group functions.
-spec pre_end_per_group(Group :: atom(),
Config :: config() | skip_or_fail(),
State :: #state{}) ->
{ok | skip_or_fail(), NewState :: #state{}}.
pre_end_per_group(Group,Config,State) ->
{Config, State}.
%% @doc Called after each end_per_group. Note that the config cannot be
%% changed here, only the status of the group.
-spec post_end_per_group(Group :: atom(),
Config :: config(),
Return :: term(),
State :: #state{}) ->
{ok | skip_or_fail(), NewState :: #state{}}.
post_end_per_group(Group,Config,Return,State) ->
{Return, State}.
%% @doc Called before each test case.
%% You can change the config in this function.
-spec pre_init_per_testcase(TC :: atom(),
Config :: config(),
State :: #state{}) ->
{config() | skip_or_fail(), NewState :: #state{}}.
pre_init_per_testcase(TC,Config,State) ->
{Config, State}.
%% @doc Called after each test case. Note that the config cannot be
%% changed here, only the status of the test case.
-spec post_end_per_testcase(TC :: atom(),
Config :: config(),
Return :: term(),
State :: #state{}) ->
{ok | skip_or_fail(), NewState :: #state{}}.
post_end_per_testcase(TC,Config,Return,State) ->
%% check that config has been restored
ct:pal("Config in verify_config:post_end_per_testcase(~w) = ~p",
[TC,Config]),
[{_,MemConfig}] = ets:lookup(config_restored_SUITE, config),
try config_restored_SUITE:diff_config(Config, MemConfig, [tc_status]) of
ok ->
gen_event:notify(
?CT_EVMGR_REF, #event{ name = cth, node = node(),
data = {?MODULE, post_end_per_testcase,
{TC,diff_ok}}})
catch
_:_ ->
gen_event:notify(
?CT_EVMGR_REF, #event{ name = cth, node = node(),
data = {?MODULE, post_end_per_testcase,
{TC,diff_failed}}})
end,
{Return, State}.
%% @doc Called after post_init_per_suite, post_end_per_suite, post_init_per_group,
%% post_end_per_group and post_end_per_tc if the suite, group or test case failed.
%% This function should be used for extra cleanup which might be needed.
%% It is not possible to modify the config or the status of the test run.
-spec on_tc_fail(TC :: init_per_suite | end_per_suite |
init_per_group | end_per_group | atom(),
Reason :: term(), State :: #state{}) ->
NewState :: #state{}.
on_tc_fail(TC, Reason, State) ->
State.
%% @doc Called when a test case is skipped by either user action
%% or due to an init function failing. Test case can be
%% end_per_suite, init_per_group, end_per_group and the actual test cases.
-spec on_tc_skip(TC :: end_per_suite |
init_per_group | end_per_group | atom(),
{tc_auto_skip, {failed, {Mod :: atom(), Function :: atom(), Reason :: term()}}} |
{tc_user_skip, {skipped, Reason :: term()}},
State :: #state{}) ->
NewState :: #state{}.
on_tc_skip(TC, Reason, State) ->
State.
%% @doc Called when the scope of the CTH is done, this depends on
%% when the CTH was specified. This translation table describes when this
%% function is called.
%%
%% | Started in | terminate called |
%% |---------------------|-------------------------|
%% | command_line | after all tests are run |
%% | test spec | after all tests are run |
%% | suite/0 | after SUITE is done |
%% | init_per_suite/1 | after SUITE is done |
%% | init_per_group/2 | after group is done |
%% |-----------------------------------------------|
%%
-spec terminate(State :: #state{}) ->
term().
terminate(State) ->
ok.
